Saiyuki Ibun recounts how a man grew up to become the pivotal character Koumyou, years before the first Saiyuki storyline.
(Source: ANN)

At last, the Sanzo Party has arrived in India. In this foreign land, where the anomaly’s influence runs rampant, their battles only heighten in their violence.
And also awaiting them is their tragic fate from 500 years ago—
What will they find at the end of their long and treacherous journey?

Having been assigned by the human elders the mission of stopping a mystical plague that has afflicted the Youkai with madness, Genjyo Sanzo assembles his team of Youkai warriors, desperately hoping that the disease will not affect them. He sets up qualifying tests that will help him determine the loyalty and worth of Cho Hakkai, Son Goku and Sha Gojyo. The team then journeys west to rid the land of madness.

Toki Mishiba, Nobuto Nakajyo, and Kazuo Saitoh are hired to play the Biz Game, a game much like capture the flag, only with company secrets and insane amounts of money involved. At first they think it's a crazy but fun way to get some money, but as the game goes on, they hear stories about mysterious deaths on the news, and recognize the victims as members of the teams they've beaten in the game. When one of the losers of a game dies right in front of them, they realize what is really at stake - their very lives! (credit: Manga-Updates)

500 years before the story of Saiyuki, a heretic child with golden eyes is brought into Heaven. He is given into the reluctant care of a minor deity named Konzen, the nephew of the Merciful Goddess Kanzeon Bosatsu. Konzen eventually gives the child the name "Goku". Goku becomes friends with two other minor gods, Marshal Tenpou and General Kenren of the Western Army of Heaven. He also meets a strange little boy who seems to be his own age, the War Prince Nataku. Although Goku is happy in his new home, Heaven is not kind to heretics. There are those who would use Nataku and Goku as tools in an attempt to seize the throne of Heaven, and Konzen, Tenpou, and Kenren may not be able to save them.

Stork, the man with no memories, and Tit, the boy with no home, travel across the grim world where the sky is grey and the birds are believed extinct. They have met accidentally and continued together, both searching. Stork searches for his past and Tit searches for a bird. They are followed by the dark mysterious man, who may have relation to Stork's past.

These stories chronicle the everyday working life of the staff of the Cafe & Restaurant Honey Comb. The main character, college student and waiter Mitarai Tsutomu, interacts with the various quirky female waitresses. These girls include the cute Megumi, who happens to be obsessed with Gundam, the angsty and hungry Ritsuko, cheerful and large-breasted Mai, who nicknamed Mitarai "toilet", and the mysterious head waitress Taeko, who never speaks.
(Source: MangaHelpers)

Meet the Executive Committee of Araiso Private High School, a group of five students whose motto is “Ridiculing the weak and bullying the strong.” At the heart of this organization are Kubota Makoto and Tokito Minoru, two bad boys who take care of any trouble at the school in their own unique (and violent) way. If you are familiar with Minekura’s other works or if you paid attention to the Wild Adapter description, you’ll recognize the names of Kubota and Tokito as main characters of the WA manga. No reference is ever made to the Wild Adapter story line in Araiso, which is slightly more upbeat than the dark Wild Adapter. This manga is also known as Shiritsu Araiso Koutougakkou Seitokai Shikkoubu referred to as simply Executive Committee.

Makoto Kubota wandered through life, not taking things too seriously or looking too deep within himself. His job as the head of the Izumo Group's youth gang kept him pleasantly occupied with yakuza wars, mahjong and assassinations... Until the day he stumbled upon a strange drug called Wild Adapter that produces bizarre side-effects—including death. Forever changed, Kubota becomes entangled with a drifter named Minoru Tokito, and the two form an unlikely companionship that draws them deeper into the mystery of Wild Adapter...

(Source: Tokyopop)

Toki Mishiba, Nobuto Nakajyo, and Kazuo Saitoh are hired to play the Biz Game, a game much like capture the flag, only with company secrets and insane amounts of money involved. At first they think it's a crazy but fun way to get some money, but as the game goes on, they hear stories about mysterious deaths on the news, and recognize the victims as members of the teams they've beaten in the game. When one of the losers of a game dies right in front of them, they realize what is really at stake - their very lives!

Note: Bus Gamer was originally published in shoujo magazine Stencil, but was later re-drawn and re-published in shounen magazine Comic REX. Both times it was axed after the magazine went under. This is the Comic REX version.

"Love could be enjoyed fully, if there wasn't that rival - a woman!" [Datenshi Blue Scanlations]
"Sekine is the captain of the judo team. His friend and roommate Kosakai is a popular novelist. They both attend school and seem to be pretty close. Tamura Maiko is a member of the judo team and she falls in love with one of them. A love triangle follows." [MangaUpdates.com]

From: Project Kurai Ryu

Up in Heaven, a new part-timer joins the team under Tenpo and Kenren's care. He gets to see the so-called "ants" from the inside.

Priest Genjo Sanzo and companions Cho Hakkai, Sha Gojyo, and Son Goku maintain their westward journey to stop the resurrection of the demon Gyoumao. As the reputation of the Sanzo Ikkou precedes them, they continue to fight demon assassins at every turn, but they must also deal with increasing tensions within their group in order to defeat a powerful enemy.